μCos-II在嵌入式通信信号源中的应用  

Application of μCos-II in the Embedded Communication Signal Source

作　　者：李牧[1] 黄瑞光[1] 

机构地区：[1]华中科技大学,湖北武汉430074

出　　处：《无线电工程》2006年第9期55-58,共4页Radio Engineering

摘　　要：嵌入式通信信号源采用MCU控制DDS芯片的结构,产生FSK、LFM(线性调频)和MSK等多种信号模式。运行实时操作系统μCos-II,将应用程序按功能划分为几个核心任务,由实时内核进行调度,实现了多任务的并行执行,提高了嵌入式系统开发的效率、实时性和可靠性。通过以实时嵌入式操作系统μCos-II为软件平台的嵌入式通信信号源的系统设计,介绍了μCos-II的系统开销、移植和配置、多任务编程以及任务间同步、通信的实现方法。The embedded communication signal source introduces a structure of DDS controlled by MCU, and can produce various signal modes such as FSK, LFM and MSK etc. By running the real-time operating system μCos-Ⅱ, the application program is divided into several central tasks in terms of functions, and scheduled by the real-time kernel, so the efficiency and reliability are improved. Through the system design of the embedded communication signal source based on μCos-Ⅱ, this paper introduces the system overhead, transplantation and configuration of μCos-Ⅱ, as well as the realization of multi-task program and the synchronization and communication between tasks.

关 键 词：μCos—Ⅱ 任务间同步和通信 通信信号源 DDS 

分 类 号：TN911[电子电信—通信与信息系统]